Add missing NC pin to MAX31820PAR.
Add missing NC pin to MAX31820PAR.

true-nature/kicad-library,stambaughw/kicad-library,jkriege2/kicad-library,crackerizer/kicad-library,jkriege2/kicad-library,true-nature/kicad-library,crackerizer/kicad-library,pointhi/kicad-library,stambaughw/kicad-library